US1662772A - Shears - Google Patents

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US1662772A
US1662772A US147082A US14708226A US1662772A US 1662772 A US1662772 A US 1662772A US 147082 A US147082 A US 147082A US 14708226 A US14708226 A US 14708226A US 1662772 A US1662772 A US 1662772A
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Prior art keywords
blades
blade
lever
stud
shears
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US147082A
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Clarence H Wilkes
George E Calhoun
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A KEE NA PRODUCTS Co Inc
A-KEE-NA PRODUCTS COMPANY Inc
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A KEE NA PRODUCTS Co Inc
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B26HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26BHAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR
    • B26B13/00Hand shears; Scissors
    • B26B13/04Hand shears; Scissors with detachable blades

Definitions

  • This invention relates to shears of the'class set forth in our pending application Serial No. 32,911. filed May 26, 1925, in which the' shearing blades are detachably mounted upon the adjacent faces of a pair of pivotally connected levers or blade supporting sections so that they may be quickly removed for sharpening purposes and replaced; by new or sharpened blades when desired without renewing or replacing any of the other parts.
  • the blades may be made from plate or sheet steel of uniform thickness and, therefore, capable of being tempered to the required degree of toughness and hardness more uniformly and economically than would be possible withithe cutting edges formed directly upon thecrossing levers as commonly practised.
  • the main object of the present invention is to not only meet these requirements but also to enable the blades to be easily, and quickly removed and replaced by new ones at less than the cost usually incurred in sharpening the old type of blades.
  • Another object is to assure a firm retention of the blades in operative. position against relative movement upon the respec tive levers when the latter with the blades thereon are assembled for use.
  • Figures 1 and 2 are opposite face views of a pair of shears embodying the various features of our invention.
  • FIG. 3 is an enlarged longitudinal sectional View taken on line 33, Figure 1, the handles being broken away. 7
  • Figures 4 and 5 are face views of the separate detached shearing blades shown in Figures 1, 2 and 3. r
  • Figures 6 and 7 are opposite face views of a heavier service shears showing certain i'i'iodifications in the form of the levers and in the construction of the pivotal post and of other detail parts.
  • FIG. 8 is an enlarged longitudinal sec tional view, partly broken away, taken on line 88, Figure 6.
  • Figures .9 and 10 are face views of the detached cooperative shearing blades.
  • the shearsshown in Figures 1 to 5 inclusive comprises a pair of lovers l and -2 crossing each other intermediate their ends and pivotally connected to each other by a pivotal stud -3 for relative shearing movement about the axis of the pivot.
  • Theforwardly extending arm of the lever 1 constitutes, what may be termed a blade-supporting section 1 having its inner face substantially flat transversely and slightly concaved longitudinally for receiving and supporting a separate shearing blade section .5 the other end of said lever being provided with a handle or finger loop 8 of any suitable form to facilitate the manipnla-tionof the levers.
  • the forwardly projecting arm of the lever -2- constitutes what may be termed a blade-supportin section 6- having its face substantially fiat transversely and slightly concaved longitudinally for receiving and supporting a separate shearing blade section 7 for shearing co-action with the blade section -5,the other end 'of said lever 2 being formed with a handle or finger loop -8- in opposite relation to the handle 8 to facilitate'the manipulation of the levers about the axis of the pivotal stud 3.
  • a blade-supportin section 6- having its face substantially fiat transversely and slightly concaved longitudinally for receiving and supporting a separate shearing blade section 7 for shearing co-action with the blade section -5,the other end 'of said lever 2 being formed with a handle or finger loop -8- in opposite relation to the handle 8 to facilitate'the manipulation of the levers about the axis of the pivotal stud 3.
  • the stud 3 is riveted or otherwise firmly secured at one end in an aperture 9 in the lever 1 and has its other end extended axially beyond the inner face of said lever through anaperture 10 in the lever 2 to form a journal bearing for the last-named lever which has its inner transversely flattened face extended rearwardly some distance beyond the stud 3.
  • the shearing blade sections 5- and 7- are substantially the same length and extend along the inner faces of their respective arms 4-- and 6 from points some distance to the rear of the stud 3- to points a considerable distance beyond the front ends of the arms -4'- and 6- and are respectively provided with apertures 11 and -12- registering with the corresponding apertures -9- and 10*- for receiving the pivotal stud -3-.
  • the transversely flattened inner face of the arm --4- of the lever 1 extends rearwardly some distance beyond the pivot'al stud 3 where it joins the shank of the handle 8 and at this junction the shank is thickened transversely to extend beyond the inner transversely flattened face of the arm -4 a distance corresponding approximately to the combined thicknesses of the adjacent portions of the arm v 8* and shearing blades -5 and -7 as shownfin Figure 3 thereby forming a stop *5" and ;7- are detachably mounted upon the inner faces of their respective supporting arms a and 5 of the levers 1 and -2 and are preferably of greater length than said arms so that when adjusted for use they will extend a considerable distance beyond the front ends thereof as shown in Figure 3 thereby conserving the amount of stock required for the levers land 2 and at the'saine time assuring greater shearing efficiency of the blades throughout their entire lengths from heel to point.
  • the portion of the stud --3 passing through the registering apertures in the parts -5*, 6- and -7 is cylindrical and of substantially the same diameter as the openings -10-- and -12 in the parts -6-- and -7 so as to hold those parts against radial and endwise movement relatively to each other and to the lever 1 when the parts are adjusted foruse While at the same time permitting free turning movement of the arms -l-- and-6- and blades 5- and -7 carried thereby about the axis of the stud.
  • each of the arms-4 and 6- is provided near its front end with lugs -13 and 13- riveted or otherwise secured in suitable apertures therein so as to become permanent parts thereof as shown in Figure 3.
  • These lugs -13 and 13 project inwardly from the inner faces of their respective arms -4- and -6 and are adapted to enter elongated slots -14- and --14 in the corresponding shearing blades 5 and 7-.
  • the front end walls of the slots v14 and -14'- are beveled or inclined inwardly and forwardly from their outer faces to form wed e-shaped locking shoulders -15- and 15 front ends of the lugs 13 and --1.3- respectively to assist in holding the blades -5 and 7 upon their respective arms 'l and 6.
  • the front ends or toes of the lugs 'l3 and -13'-- are also beveled inwardly and substantially equal to the thickness of their respective blades 5- and -7-- so that when the blades are assembled upon their corresponding supporting arms in engagement with the adjacent lugs, the inner faces of the lugs will be substantially flush or slightly within the corresponding inner faces of the blades so as to avoid a possibility of contact of the cutting edges of either blade with the lug of the other blade as the shears are opened and closed.
  • the length of the inwardly projecting portions of the lugs --13- and 13- is approximately equal to the length of the slots which receive them but for convenience of assembling, the rear ends or heels of the lugs are disposed at substantially right angles to their inner faces as shown in Figure 3 thus permitting the rear ends of the blades to be tilted about the toes of the respective lugs as fulerums in the act of placing the blades upon or removing them from their respective arms +-4'- and 6-.
  • the aperture -11- is elongated lengthwise of the blade sufficiently lOO to allow the rear end of the blade to pass over and upon the pivotal stud -3 which,
  • the blade '7- is placed upon its supporting arm -6- in engagement with the correspondingv'lug 13 before the lever 2 is placed'upon the lever 1. and,'therefore, there is no necessity for elongating the opening 12- in the blade .-7 because it, together with its lever 2 may be moved rectilinearly or axially over and upon the stud 3 and held in operative relation to its companion blade 5 and its support 4 by means presently described.
  • the stud 3- is extended beyond the outer face of the adjacent portion of the lever 2. and is provided-with an annular groove 16 adapted to be engaged by a latch lever 17 which, in turn, is journaled upon the thickened portion of the shank of the lever --1 by means of a pivotal pin 1S just at the rear of the shoulder 1 as shown in Figure 3.
  • This latch lever '17 rests against the adjacent outer face of the levers 1- and 2 and is provided with aslot '17 open atone side to permit the passage of the reduced portion of the pivotal stud --3 thereinto, the closed side of theslot serving as a stop for limiting the locking movement of the latch.
  • Suitable means is also provided for hold.- ing the blade 5 against acidental endwise movement due to the elongation of the slot -1l when adjusted for use and for this purpose a relatively short stud 19 is riveted or otherwise secured in an aperture in the blade 5 just in front of the slot -11*- and is adapted to seat in a corresponding socket 20 in the inner face of the supporting arm-4, the diameters of the socket -20 and portion of the stud 19 entering the same being substantially equal so as to assist in holding the blade 5 against endwise movement as well as against lateral movement relatively to the arm 4.
  • transverse width of the slot 1l is substantially equal to the diameter of the adjacent portion of the pivotal stud 3- for the purpose of holding the rear end of the blade 5 against lateral movement.
  • the stud as l9' instead of being secured to the adjacent blade is riveted .orotherwise secured to the corresponding arm l of the lever land has its inner end projecting slightly beyond the inner face of said arm for entrance into an aperture -2l'- in the blade 5 to assistin holding the blade and arm against relative endwise or lateral movement when the parts are assembled Y for use.
  • the blade 5- is first placedflatwise against the inner face of the front end of the arm 4 with its slot 14- registered with the lug and its rear end tilted away from the adjacent portion of the arm 4: suffi ciently to enable the beveled shoulder .15 to engagethe beveled front end or toe of the lug '-13- whereupon the blade 5 is drawn reaiwardly upon the lug '13 in the manner of drawing a shoe on to the foot thereby causing the beveled shoulder 15 to wedge against the beveled toe of the lug 13- and drawing the adjacent portion of the blade tightly against the inner face of the arm 4; during which operation the slot -1l in the rear end of the blade 5 is registered with the free end of the pivotal stud 3 and the rear end of the blade is then forced against the inner face of the arm 4 causing the stud -19 to enter the socket 20.
  • the blade -7 is then placed upon and against the inner face of its supporting arm 6 in such manner as to cause the lug l3- to enter the slot -14 whereupon the rearward movement of the blade 7- along and upon the inner face of the arm 6 will cause the beveled shoulder 15 to wedge against the beveled toe ofthe lug +l3 thereby drawing the blade 7 tightly against the inner face of the supporting arm 6.
  • the largelever -17 When it is desired to remove the blades the largelever -17 is simply rocked from its locking posit-ion out of engagement with the adjacent face of the lever 2 whereupon the lever -2 and blades 5 and 6 may be easily withdrawn one from the other axially of the stud 3- or, when the latch lever is unlocked in the manner described, the inversion of the lever '1 with the free end of the stud -3 at the bottom will allow the (lever 2- and blades 5- and 6 to fall out of engagement with each other and with the lever -1 by their own weight ready for replacement of new blades ii desired or in case the old blades become worn.
  • a shears constructed in the manner described is adistinet advance in this art in that the blade supporting levers may be made from untempered and, therefore, lower priced material while the blades may alsobe made of relatively low-priced tempered sheet or plate steel and, when dulled or otherwise impaired, may be replaced by sharp blades without material loss of time and at no more cost than would be occasioned by the sharpening of the blades of ordinary shears. i a.
  • the manner of mounting the blades upon their respective levers assures a close contact of the cuttting edges thereof throughout their lengths without adjustment due partially to the spring tension exerted by the latch lever -17 tending to hold the blades in contact.

Description

March 13. 1928. 1,662,772
0. WILKES ET AL SHEARS Filed Nov. 8, 1926 3 Sheets-Sheet l 61 mzw% BY 5 g 6% mm W A ORNEYS.
March 13, 1928.
- C. H. WILKES ET AL SHEARS Filed Nov. 8, 1926 3 Sheets-Sheet il? Ill/i i. lllllxlllllllw II 1 VENTOR.
. ,y W a 6. avz L 4 AT ORNEYS,
March 13, 1928. 1,662,772
Jhrrvess V Patented Mar. 13, 1928.
UNITED STATES PATENT ors ca- CLARENCE H. WILKES AND GEORGE E. CALHOUN, or. AMSTERDAM, NEW YORK, A8- srenons TO A-KEE-NA rnonuo'rs COMPANY, rnconronarnn, on AMSTERDAM, NEW YORK, A oonronarron or DELAWARE. I
SHEARS.
Application filed November 8, 1926. Serial lTo. 147,082.
This invention relates to shears of the'class set forth in our pending application Serial No. 32,911. filed May 26, 1925, in which the' shearing blades are detachably mounted upon the adjacent faces of a pair of pivotally connected levers or blade supporting sections so that they may be quickly removed for sharpening purposes and replaced; by new or sharpened blades when desired without renewing or replacing any of the other parts.
One of the greatest advantages in the use of removable blades in shears of this character is that the blades may be made from plate or sheet steel of uniform thickness and, therefore, capable of being tempered to the required degree of toughness and hardness more uniformly and economically than would be possible withithe cutting edges formed directly upon thecrossing levers as commonly practised.
It is highly important in all classes of shears and particularly those with removable blades to maintain close contact of the a shearing edges throughout their entire working lengths or from their extreme rear ends to the extreme front ends or points.
The main object of the present invention is to not only meet these requirements but also to enable the blades to be easily, and quickly removed and replaced by new ones at less than the cost usually incurred in sharpening the old type of blades.
Another object is to assure a firm retention of the blades in operative. position against relative movement upon the respec tive levers when the latter with the blades thereon are assembled for use.
Other objects and uses relating to specific parts of the shears will be brought out in the following description.
In the drawings i Figures 1 and 2 are opposite face views of a pair of shears embodying the various features of our invention.
Figure 3 is an enlarged longitudinal sectional View taken on line 33, Figure 1, the handles being broken away. 7
Figures 4 and 5 are face views of the separate detached shearing blades shown in Figures 1, 2 and 3. r
Figures 6 and 7 are opposite face views of a heavier service shears showing certain i'i'iodifications in the form of the levers and in the construction of the pivotal post and of other detail parts.
I Figure8 is an enlarged longitudinal sec tional view, partly broken away, taken on line 88, Figure 6.
Figures .9 and 10 are face views of the detached cooperative shearing blades.
The shearsshown in Figures 1 to 5 inclusive comprisesa pair of lovers l and -2 crossing each other intermediate their ends and pivotally connected to each other by a pivotal stud -3 for relative shearing movement about the axis of the pivot.
Theforwardly extending arm of the lever 1 constitutes, what may be termed a blade-supporting section 1 having its inner face substantially flat transversely and slightly concaved longitudinally for receiving and supporting a separate shearing blade section .5 the other end of said lever being provided with a handle or finger loop 8 of any suitable form to facilitate the manipnla-tionof the levers.
. .The forwardly projecting arm of the lever -2- constitutes what may be termed a blade-supportin section 6- having its face substantially fiat transversely and slightly concaved longitudinally for receiving and supporting a separate shearing blade section 7 for shearing co-action with the blade section -5,the other end 'of said lever 2 being formed with a handle or finger loop -8- in opposite relation to the handle 8 to facilitate'the manipulation of the levers about the axis of the pivotal stud 3. 1 a
The stud 3 is riveted or otherwise firmly secured at one end in an aperture 9 in the lever 1 and has its other end extended axially beyond the inner face of said lever through anaperture 10 in the lever 2 to form a journal bearing for the last-named lever which has its inner transversely flattened face extended rearwardly some distance beyond the stud 3.
The shearing blade sections 5- and 7- are substantially the same length and extend along the inner faces of their respective arms 4-- and 6 from points some distance to the rear of the stud 3- to points a considerable distance beyond the front ends of the arms -4'- and 6- and are respectively provided with apertures 11 and -12- registering with the corresponding apertures -9- and 10*- for receiving the pivotal stud -3-.
The transversely flattened inner face of the arm --4- of the lever 1 extends rearwardly some distance beyond the pivot'al stud 3 where it joins the shank of the handle 8 and at this junction the shank is thickened transversely to extend beyond the inner transversely flattened face of the arm -4 a distance corresponding approximately to the combined thicknesses of the adjacent portions of the arm v 8* and shearing blades -5 and -7 as shownfin Figure 3 thereby forming a stop *5" and ;7- are detachably mounted upon the inner faces of their respective supporting arms a and 5 of the levers 1 and -2 and are preferably of greater length than said arms so that when adjusted for use they will extend a considerable distance beyond the front ends thereof as shown in Figure 3 thereby conserving the amount of stock required for the levers land 2 and at the'saine time assuring greater shearing efficiency of the blades throughout their entire lengths from heel to point.
The portion of the stud --3 passing through the registering apertures in the parts -5*, 6- and -7 is cylindrical and of substantially the same diameter as the openings -10-- and -12 in the parts -6-- and -7 so as to hold those parts against radial and endwise movement relatively to each other and to the lever 1 when the parts are adjusted foruse While at the same time permitting free turning movement of the arms -l-- and-6- and blades 5- and -7 carried thereby about the axis of the stud.
Similar devices are provided for holding each of the blades 5- and against turning movement relatively to its supporting arm 4-- about the axis of the pivotal stud -3+- and for this purpose each of the arms-4 and 6- is provided near its front end with lugs -13 and 13- riveted or otherwise secured in suitable apertures therein so as to become permanent parts thereof as shown in Figure 3.
These lugs -13 and 13 project inwardly from the inner faces of their respective arms -4- and -6 and are adapted to enter elongated slots -14- and --14 in the corresponding shearing blades 5 and 7-.
The front end walls of the slots v14 and -14'- are beveled or inclined inwardly and forwardly from their outer faces to form wed e-shaped locking shoulders -15- and 15 front ends of the lugs 13 and --1.3- respectively to assist in holding the blades -5 and 7 upon their respective arms 'l and 6.
The portions of the lugs 18- and 13', projecting inwardly from their in nor faces of their respective arms 4,- and -6, are of'just sullicient transverse width to enter their respective slots --lel and adapted to be engaged by the --14'- withoutlateral playso that when v seated in said slots the adjacent portions of the blades -5-- and 7 will be held against lateral movement relatively to their corresponding arms tand -45. v
The front ends or toes of the lugs 'l3 and -13'-- are also beveled inwardly and substantially equal to the thickness of their respective blades 5- and -7-- so that when the blades are assembled upon their corresponding supporting arms in engagement with the adjacent lugs, the inner faces of the lugs will be substantially flush or slightly within the corresponding inner faces of the blades so as to avoid a possibility of contact of the cutting edges of either blade with the lug of the other blade as the shears are opened and closed.
The rear ends of the slots -14 and -14-- are also beveled inwardly and forwardly from the outer faces of the blades 5" and -7-- substantiallyparallel with their corresponding shoulders +15 and --15- so as to facilitate the assembling of theblades upon theirrespcctive lugs in a manner hereinafter described;
The length of the inwardly projecting portions of the lugs --13- and 13- is approximately equal to the length of the slots which receive them but for convenience of assembling, the rear ends or heels of the lugs are disposed at substantially right angles to their inner faces as shown in Figure 3 thus permitting the rear ends of the blades to be tilted about the toes of the respective lugs as fulerums in the act of placing the blades upon or removing them from their respective arms +-4'- and 6-.
Owing to this necessity for tilting movement of the blade 5- relatively to its supporting arm -4 the aperture -11- is elongated lengthwise of the blade sufficiently lOO to allow the rear end of the blade to pass over and upon the pivotal stud -3 which,
it will be remembered, is rigidly secured to the arm 4. a i
It will be noted however that the blade '7- is placed upon its supporting arm -6- in engagement with the correspondingv'lug 13 before the lever 2 is placed'upon the lever 1. and,'therefore, there is no necessity for elongating the opening 12- in the blade .-7 because it, together with its lever 2 may be moved rectilinearly or axially over and upon the stud 3 and held in operative relation to its companion blade 5 and its support 4 by means presently described.
As a furthermeans for facilitating the assembly of the levers 1 and 2 one upon the other with their respective blades in operative position thereon, the stud 3- is extended beyond the outer face of the adjacent portion of the lever 2. and is provided-with an annular groove 16 adapted to be engaged by a latch lever 17 which, in turn, is journaled upon the thickened portion of the shank of the lever --1 by means of a pivotal pin 1S just at the rear of the shoulder 1 as shown in Figure 3. v a
This latch lever '17 rests against the adjacent outer face of the levers 1- and 2 and is provided with aslot '17 open atone side to permit the passage of the reduced portion of the pivotal stud --3 thereinto, the closed side of theslot serving as a stop for limiting the locking movement of the latch.
Suitable means is also provided for hold.- ing the blade 5 against acidental endwise movement due to the elongation of the slot -1l when adjusted for use and for this purpose a relatively short stud 19 is riveted or otherwise secured in an aperture in the blade 5 just in front of the slot -11*- and is adapted to seat in a corresponding socket 20 in the inner face of the supporting arm-4, the diameters of the socket -20 and portion of the stud 19 entering the same being substantially equal so as to assist in holding the blade 5 against endwise movement as well as against lateral movement relatively to the arm 4.
It is to be understood however that the transverse width of the slot 1l is substantially equal to the diameter of the adjacent portion of the pivotal stud 3- for the purpose of holding the rear end of the blade 5 against lateral movement.
The shears shown in Figures 6 to 10 inclusive are quite similar to that shown in Figures 1 to 5 inclusive except as to form or design and with the further exception that the pivotal. stud as --3 is provided with a post -2l-- extending axially some distance beyond the outerface of the lever '1 to afford a rest adapted to engage the surface of a table or other support upon which the shears might be laid to hold the shears at a convenient angle for the engagement of the handles by the hand of the user. V
A further exception is that the stud as l9' instead of being secured to the adjacent blade is riveted .orotherwise secured to the corresponding arm l of the lever land has its inner end projecting slightly beyond the inner face of said arm for entrance into an aperture -2l'- in the blade 5 to assistin holding the blade and arm against relative endwise or lateral movement when the parts are assembled Y for use.
Otherwise the same description applied to the construction shown in Figures 1 to 5 inclusive also applies to the construction shown in Figures 6 to 10 inclusive.
Operation.
In assembling theparts of the shears the blade 5- is first placedflatwise against the inner face of the front end of the arm 4 with its slot 14- registered with the lug and its rear end tilted away from the adjacent portion of the arm 4: suffi ciently to enable the beveled shoulder .15 to engagethe beveled front end or toe of the lug '-13- whereupon the blade 5 is drawn reaiwardly upon the lug '13 in the manner of drawing a shoe on to the foot thereby causing the beveled shoulder 15 to wedge against the beveled toe of the lug 13- and drawing the adjacent portion of the blade tightly against the inner face of the arm 4; during which operation the slot -1l in the rear end of the blade 5 is registered with the free end of the pivotal stud 3 and the rear end of the blade is then forced against the inner face of the arm 4 causing the stud -19 to enter the socket 20.
The blade -7 is then placed upon and against the inner face of its supporting arm 6 in such manner as to cause the lug l3- to enter the slot -14 whereupon the rearward movement of the blade 7- along and upon the inner face of the arm 6 will cause the beveled shoulder 15 to wedge against the beveled toe ofthe lug +l3 thereby drawing the blade 7 tightly against the inner face of the supporting arm 6.
The aperture 12 in the blade 7 is then registered with the opening 10 in the arm 6, and the lever 2 with the blade 7 thereon is then placed over and upon the pivotal stud 3 until the inner face of the blade 7- contacts with the inner face of its companion blade 5 whereupon the latch lever 17 is forced by hand Lid into
all
, lengths orfroin heel to point.
When it is desired to remove the blades the largelever -17 is simply rocked from its locking posit-ion out of engagement with the adjacent face of the lever 2 whereupon the lever -2 and blades 5 and 6 may be easily withdrawn one from the other axially of the stud 3- or, when the latch lever is unlocked in the manner described, the inversion of the lever '1 with the free end of the stud -3 at the bottom will allow the (lever 2- and blades 5- and 6 to fall out of engagement with each other and with the lever -1 by their own weight ready for replacement of new blades ii desired or in case the old blades become worn.
It will be seen h'OlTl the foregoing description that a shears constructed in the manner described is adistinet advance in this art in that the blade supporting levers may be made from untempered and, therefore, lower priced material while the blades may alsobe made of relatively low-priced tempered sheet or plate steel and, when dulled or otherwise impaired, may be replaced by sharp blades without material loss of time and at no more cost than would be occasioned by the sharpening of the blades of ordinary shears. i a.
Furthermore, the manner of mounting the blades upon their respective levers assures a close contact of the cuttting edges thereof throughout their lengths without adjustment due partially to the spring tension exerted by the latch lever -17 tending to hold the blades in contact.
What we claim is In a shears, a pair of levers crossing each other, separate shearing blades detachv ably applied to the inner faces of the front arms of the levers to overlap at the crossing, a pivotal stud secured to one lever and; pro jecting through registering apertures in the other lever and blades, the blade attached tober, 1926.
CLARENCE I-I. XVILKES. GEORGE' E. CALHOUN.
US147082A 1926-11-08 1926-11-08 Shears Expired - Lifetime US1662772A (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2505705A (en) * 1947-04-10 1950-04-25 Change A Blade Corp Thread cutter
US3772780A (en) * 1971-03-02 1973-11-20 Kabel Metallwerke Ghh Apparatus for cutting metal sheath
EP0352982A1 (en) * 1988-07-23 1990-01-31 Bulldog Tools Limited Secateurs

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2505705A (en) * 1947-04-10 1950-04-25 Change A Blade Corp Thread cutter
US3772780A (en) * 1971-03-02 1973-11-20 Kabel Metallwerke Ghh Apparatus for cutting metal sheath
EP0352982A1 (en) * 1988-07-23 1990-01-31 Bulldog Tools Limited Secateurs

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